用原子吸收法研究金矿氰化浸出曲线

Study on cyanide leaching curve of gold ore by atomic absorption method

原子吸收法多点取样测定液相金品位是获得金矿石氰化浸出曲线的理想方法．实际测定了几种金矿石的氰化浸出曲线，总结了在恒速氰化浸出条件下氰化浸出曲线的特征，多数金矿石液相金品位与时间的对数值之间有一段良好的线性关系．研究浸出曲线对实际生产有指导意义．

To determine liquid-phase gold grade by atomic absorption method and multipoint sampling is an ideal method of guming cyanide leaching curve of gold ore. In tnts paper, the cyanide leaching curves of several kinds of gold ore are determined while the characteristics of cyanide leaching curve under the condition of constant-rate cyanide leaching are summarized.There exists better linear relation between liquid-phase gold grade of most gold ores and the logarithum of time.The study on leaching curve is of guiding sigificance to practical operation.